KMDF Infrastructure
KMDF operates as an abstraction layer over WDM. Because both the framework and associated drivers run in kernel mode, the infrastructure is much simpler than that of UMDF. Figure 4-3 shows the components that make up the KMDF infrastructure. As an example, the figure shows a simple device stack, consisting of a KMDF function driver, a WDM lower filter driver, and a WDM bus driver.
Figure 4-3. KMDF driver and infrastructure
KMDF Infrastructure Components
The KMDF infrastructure is made up of several components: the framework, the KMDF drivers, and other drivers.
The Framework KMDF has a single runtime component—the framework—as compared ...
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